Set the object for context menu events.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50644 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/mac/carbon/window.cpp

@@ -3155,6 +3155,7 @@ void wxWindowMac::OnMouseEvent( wxMouseEvent &event )
         wxContextMenuEvent evtCtx(wxEVT_CONTEXT_MENU,
                                   this->GetId(),
                                   this->ClientToScreen(event.GetPosition()));
+        evtCtx.SetEventObject(this);
         if ( ! HandleWindowEvent(evtCtx) )
             event.Skip() ;
     }